Circularly Polarized Adaptive Beam Scanning Antenna in a Cluster Grouping to Avoid Hidden Node Collision in Wireless Sensor Network

Ms.M.Sujatha; Dr.R.S.Bhuvaneswaran

Volume : IV, Issue : VIII, August - 2014

Circularly Polarized Adaptive Beam Scanning Antenna in a Cluster Grouping to Avoid Hidden Node Collision in Wireless Sensor Network

Ms. M. Sujatha, Dr. R. S. Bhuvaneswaran

Abstract :

Hidden Node Collision is a common problem in Wireless Sensor Networks which makes it difficult to provide the network lifetime extension and the required Quality of Service. To avoid these problems a directional antennas with adaptive Beam scanning have been extensively used in designing MAC protocols for wireless sensor network. A design limitation is projected and overcome by circularly polarized adaptive Beam scanning antenna in a wireless sensor Network. A randomized distributed algorithm, which forms a autonomous Clustering via Directional Antenna (ACDA) has been proposed to mitigate hidden node collision in a wireless sensor Network .When a new node tries to join a group , a beam scanning process is initiated in the new node to determine a cluster Head of a communication sector using circularly polarized adaptive Beam scanning antenna .Simulation and analysis using the ADS proves that the directivity and Gain is further increased by these mechanisms and provides proof of concept for their efficiency